Underground mining contractor Murray & Roberts Cementation and its client Palabora Mining (PMC) celebrated the last blast at the new ventilation shaft, which took its depth to a final 1,200 metres below surface on 9 January. The 8.5 metre diameter upcast vent shaft – which holed through to an already developed return air way at depth – is vital to…
Read MoreMurray and Roberts sinks Palabora vent shaft
